Substrate Framework
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Substrate framework as a foundation for enterprise blockchains: - Use cases - Out-of-the box features - Available customization options
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Substrate Framework
- 3. ENTERPRISE BLOCKCHAINS REQUIREMENTS Accountable • Keep history of transactions Permissioned • Only users who have permission can access the blockchain Mutable • Data can be changed if participants agree Scalable • Need to support more TPS compare to public blockchains
- 4. TYPES OF BLOCKCHAINS Public Trustable and transparent No intermediaries Secured Performance/s calability issues Private Suited for organizational collaboration No anonymity Consortium Highly scalable Less decentralized No anonymity
- 5. TECHNOLOGY CHOICES FOR CUSTOM BLOCKCHAIN DEVELOPMENT Developed ecosystem Absolute fin-tech leader Rust and Go languages Ethereum- based High-speed Delegated POS C++ EOS-based Good for permissioned blockchains Go language Hyperledger SDK for creating blockchains Run own validators Rust language Parity Substrate Inter-blockchain communicator Go language Cosmos SDK
- 6. SUBSTRATE BENEFITS FOR BLOCKCHAIN CONSTRUCTION Fast, Efficient, Cross-platform Database/file storage Modular P2P Networking Stack Hot-Swappable Consensus Layer Interportability Configurable Transaction Queue Flexible Runtime Library WebAssembly for smart contracts Forkless runtime upgrades
- 7. SUBSTRATE UNDER THE HOOD Key concepts Nodes Consensus Smart Contracts
- 8. ARCHITECTURE
- 9. RUNTIME FRAME is a library of code that allows you to build a Substrate runtime by composing modules called "pallets".
- 10. EXTENDING FUNCTIONALITY OF BLOCKCHAIN Runtime Development: Complex applications such as: - Decentralized Exchange - Oracle - Stable Coin High entry bar for developers Provides low level access to your entire blockchain Smart Contract Simple apps, such as: - game or voting app - data services Lower bar for developers Safer Potentially less performance
- 11. EVM PALLET Substrate Runtime Ethereum Smart Contract EVM Pallet
- 12. FRONT-END
- 13. DAPP DEVELOPMENT JOURNEY Deploy Substrate Chain Add custom pallet Modify front- end template to add a custom UI
- 14. DEMO
- 15. OPTION 1: INSTALLING SUBSTRATE AND DEPENDENCIES curl https://getsubstrate.io -sSf | bash ……. Compiling sc-cli v0.10.0-dev (/tmp/tmp.h6uMQjLzJv/client/cli) Compiling subkey v2.0.1 (/tmp/tmp.h6uMQjLzJv/bin/utils/subkey) Finished release [optimized] target(s) in 27m 45s Installing /home/leybzon/.cargo/bin/subkey Installed package `subkey v2.0.1 (/tmp/tmp.h6uMQjLzJv/bin/utils/subkey)` (executable `subkey`) ~ Run source ~/.cargo/env now to update environment real 179m50.094s user 329m42.789s sys 15m31.924s source ~/.cargo/env
- 16. OPTION 2: CONNECT TO PLAYGROUND
- 17. START FROM NODE TEMPLATE
- 19. BLOCKCHAIN CONFIG FILE (CARGO.TOML) [package] authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>'] build = 'build.rs' description = 'A fresh FRAME-based Substrate node, ready for hacking.' edition = '2018' homepage = 'https://substrate.dev' license = 'Unlicense' name = 'node-template' repository = 'https://github.com/substrate- developer-hub/substrate-node-template/' version = '3.0.0' [[bin]] name = 'node-meetup'
- 20. JS APPS
- 21. QUESTIONS?
- 22. STAY IN TOUCH Gene Leybzon https://www.linkedin.com/in/leybzon/ https://www.meetup.com/members/90744 20/ https://www.leybzon.com
Editor's Notes
- Hyperledger Fabric Polygon (Matic)
- https://substrate.dev/
- https://substrate.dev/docs/en/knowledgebase/getting-started/architecture
- https://substrate.dev/docs/en/knowledgebase/runtime/
- https://substrate.dev/
- https://github.com/substrate-developer-hub/substrate-front-end-template React framework
- https://substrate.dev/docs/en/tutorials/build-a-dapp/
- https://playground.substrate.dev/ https://playground-staging.substrate.dev/
- https://playground.substrate.dev/
- [package] authors = ['Substrate DevHub <https://github.com/substrate-developer-hub>'] build = 'build.rs' description = 'A fresh FRAME-based Substrate node, ready for hacking.' edition = '2018' homepage = 'https://substrate.dev' license = 'Unlicense' name = 'node-template' repository = 'https://github.com/substrate-developer-hub/substrate-node-template/' version = '3.0.0' [[bin]] name = 'node-meetup' [package.metadata.docs.rs] targets = ['x86_64-unknown-linux-gnu'] [build-dependencies] substrate-build-script-utils = '3.0.0' [dependencies] jsonrpc-core = '15.1.0' structopt = '0.3.8' # local dependencies node-template-runtime = { path = '../runtime', version = '3.0.0' } # Substrate dependencies frame-benchmarking = '3.0.0' frame-benchmarking-cli = '3.0.0' pallet-transaction-payment-rpc = '3.0.0' sc-basic-authorship = '0.9.0' sc-cli = { features = ['wasmtime'], version = '0.9.0' } sc-client-api = '3.0.0' sc-consensus = '0.9.0' sc-consensus-aura = '0.9.0' sc-executor = { features = ['wasmtime'], version = '0.9.0' } sc-finality-grandpa = '0.9.0' sc-keystore = '3.0.0' sc-rpc = '3.0.0' sc-rpc-api = '0.9.0' sc-service = { features = ['wasmtime'], version = '0.9.0' } sc-transaction-pool = '3.0.0' sp-api = '3.0.0' sp-block-builder = '3.0.0' sp-blockchain = '3.0.0' sp-consensus = '0.9.0' sp-consensus-aura = '0.9.0' sp-core = '3.0.0' sp-finality-grandpa = '3.0.0' sp-inherents = '3.0.0' sp-runtime = '3.0.0' sp-transaction-pool = '3.0.0' substrate-frame-rpc-system = '3.0.0' [features] default = [] runtime-benchmarks = ['node-template-runtime/runtime-benchmarks']
- https://polkadot.js.org/apps/?rpc=wss%3A%2F%2F/leybzon.playground.substrate.dev/wss#/explorer